Comparative study of 27 μm emission of Ho^3+ desensitized Er^3+ in tellurite and bismuth glass
作者： Guoying Zhao , Wentian Jin , Yongzheng Fang , Yubiao He , Yingjie Li
DOI: 10.1364/OME.7.001147
关键词: Bismuth 、 Population 、 Laser 、 Photon upconversion 、 Analytical chemistry 、 Refractive index 、 Materials science 、 Chalcogenide glass 、 Excitation 、 Spontaneous emission
摘要: Energy transfer mechanisms have been quantitatively studied in Er3+/Ho3+ codoped tellurite and bismuth glass. Upon an excitation of 980 nm, enhanced Er3+:2.7 μm emission was observed when Ho3+ added to Using Dexter’s theory, it is clearly shown that the efficiency Er3+:4I13/2 → Ho3+:5I7 energy higher glass than Based on upconversion near-infrared spectra, cross relaxation + Ho3+:5I6 Er3+:4I15/2 Ho3+:5F5 comparatively effective glass, where depletes population level. The excellent spectroscopic characteristics indicate co-doped has potential application for mid-infrared laser.
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